docs: def createDashboardOverlay(self, pchOverlayKey, pchOverlayFriendlyName):
          """Creates a dashboard overlay and returns its handle"""
  
          fn = self.function_table.createDashboardOverlay
          pMainHandle = VROverlayHandle_t()
          pThumbnailHandle = VROverlayHandle_t()
          result = fn(pchOverlayKey, pchOverlayFriendlyName, byref(pMainHandle), byref(pThumbnailHandle))
          return result, pMainHandle, pThumbnailHandle